Title of article
ModelingofWWER-440fuelpinbehavioratextendedburn-up
Author/Authors
MoustafaSEl-Koliel، نويسنده , , AttyaAAbou-Zaid، نويسنده , , A.AEl-Kafas، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
7
From page
113
To page
119
Abstract
Currently,thereisanongoingefforttoincreasefueldischargeburn-upofallLWRsfuelincludingWWERsasmuchaspossibleinordertodecreasepowerproductioncost.Therefore,burn-upisexpectedtobeincreasedfrom60to70MWd/kgU.Thechangeinthefuelradialpowerdistributionasafunctionoffuelburn-upcanaffecttheradialfueltemperaturedistributionaswellasthefuelmicrostructureinthefuelpelletrim.Bothofthesefeatures,commonlytermedthe“rimeffect.”Highburn-upphenomenainWWER-440UO2fuelpin,whichareimportantforfissiongasrelease(FGR)weremodeled.Theradialburn-upasafunctionofthepelletradiusandenrichmenthastobeknowntodeterminethelocalthermalconductivity.
Inthispaper,theradialburn-upandfissileproductsdistributionsofWWER-440UO2fuelpinwereevaluatedusingMCNP4BandORIGEN2codes.TheimpactofthethermalconductivityonpredictedFGRcalculationsisneeded.Fortheanalysis,atypicalWWER-440fuelpinandsurroundingwatermoderatorareconsideredinahexagonalpinwell.Thethermalreleaseandtheathermalreleasefromthepelletrimweremodeledseparately.Thefractionoftherimstructureandtheexcessiveporosityintherimstructureinisothermalirradiationasafunctionofthefuelburn-upwaspredicted.Acomputerprogram;RIMSC-01,isdevelopedtoperformtherequiredFGRcalculations.Finally,therelevantphenomenaandthecorrespondingmodelstogetherwiththeirvalidationarepresented
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2004
Journal title
Nuclear Engineering and Design Eslah
Record number
894704
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